Shou Miyamoto and Yugo Itsukushima suddenly find themselves transported into the world of the RPG The Return of Gyasparc, complete with levels, classes, monsters, and magic. Armed with absurdly high stats and knowledge of the game, the two set out to find a way back home, but what begins as an adventure through a familiar game world soon draws them into the lives and troubles of the people who actually live there.

Along the way, they meet the sisters Ishura and Levia, take on monsters and quests, and discover that the world of Eternal may not be quite as simple as the game they remember.

[Synopsis written by Isekai Trash Preservation Scans]